KR101796459B1 - Ceramic coating method and its coated kitchenware having intaglio and relief pattern - Google Patents

Ceramic coating method and its coated kitchenware having intaglio and relief pattern Download PDF

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KR101796459B1
KR101796459B1 KR1020170053567A KR20170053567A KR101796459B1 KR 101796459 B1 KR101796459 B1 KR 101796459B1 KR 1020170053567 A KR1020170053567 A KR 1020170053567A KR 20170053567 A KR20170053567 A KR 20170053567A KR 101796459 B1 KR101796459 B1 KR 101796459B1
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South Korea
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coating
embossed
ceramic
film
engraved
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KR1020170053567A
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Korean (ko)
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이용진
홍선주
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대한화인세라믹 주식회사
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/02Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A47J36/025Vessels with non-stick features, e.g. coatings
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/002Construction of cooking-vessels ; Methods or processes of manufacturing specially adapted for cooking-vessels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002Pretreatement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218Pretreatment, e.g. heating the substrate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254After-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials

Abstract

The present invention relates to a ceramic coating method for clearly displaying embossed and engraved patterns on the surface of a kitchen utensil and a kitchen utensil coated by the same. The present invention is to provide a ceramic coating method and a kitchen utensil coated by the same wherein a lower coating layer and an upper coating layer are formed, by using a ceramic coating agent, on the kitchen utensil having patterns of an engrave unit and an embossed unit on a surface thereof and colors of the engraved unit and the embossed unit are expressed to be different. The ceramic coating method comprises: a pretreatment step of pre-treating the surface of a kitchen utensil having patterns comprising an engraved unit and an embossed unit; a preheating step of removing impurities and performing pre-heating after pretreatment step; a lower coating step of forming a lower coating layer by applying a ceramic coating agent having colors to the embossed unit and the engraved unit of the surface of the kitchen utensil after preheating step; a preliminary drying step of preliminarily drying a lower coating layer for adjustment to make a surface roughness of 0.2-5 m and a water contact angle of 80 or smaller after the lower coating step; a coating layer removal step of removing the lower coating layer coated on the embossed unit of the surface of the kitchen utensil; an upper coating step of forming an upper coating film by applying a non-adhesive transparent ceramic coating agent to the embossed unit from which the lower coating has been removed and a remaining lower coating layer; and a drying step of completely drying the upper coating layer after the upper coating step. Accordingly, the kitchen utensil with the engraved unit and the embossed unit of the patterns which have different colors can be manufactured.

Description

주방기물의 표면에 음양각 문양이 선명하게 표현되도록 하는 세라믹코팅방법과, 이에 의해 코팅된 주방기물{Ceramic coating method and its coated kitchenware having intaglio and relief pattern}[0001] The present invention relates to a ceramic coating method and a ceramic coating method for coating a surface of a kitchen ware,
본 발명은 주방기물의 표면에 음양각 문양이 선명하게 표현되도록 하는 세라믹코팅방법과, 이에 의해 제조된 주방기물에 관한 것으로, 음각부와 양각부가 형성된 주방기물의 표면에 세라믹코팅제를 코팅한 후 가건조하고, 가건조된 양각부의 도막만 선택적으로 제거한 뒤 표면전체에 비점착 세라믹 투명코팅제를 코팅하여, 비점착성을 구비하면서 음각부와 양각부의 색상이 서로 다른 독특한 디자인의 세라믹코팅 방법과 그로 코팅된 주방기물에 관한 것이다.[0001] The present invention relates to a ceramic coating method for expressing the shape of a mandibular oblong pattern on a surface of a kitchen ware, and a kitchen ware manufactured thereby, and a ceramic coating agent is coated on the surface of a kitchenware having a relief portion and a relief portion, A ceramic coating method of a unique design in which the color of the embossed portion and the embossed portion are different while the non-adhesive property is applied and the coated ceramic coating method is applied to the entire surface of the coated ceramic coating, It is about the thing.
산업이 발달하고 문명이 현대화되어 주방기물 시장도 독특한 디자인과 고기능성을 요구하는 소비자의 욕구가 높아지고 이에 충족하고자 주방기물 시장도 변화되고 발전되어 왔다. With the development of the industry and modernization of the civilization, the demand of the consumers who demand unique design and high functionality of the kitchen ware market has been increased and the kitchen ware market has been changed and developed to meet this demand.
주방기물 시장 중, 후라이팬, 냄비 소재 대부분은 알루미늄과 SUS(스텐레스스틸, 이하 SUS)가 사용되어지고 기타 소재로 유리나 철소재가 이용되어지고 있으며, 최근에는 제품의 외형디자인의 변화와는 별도로 소재 표면을 가공하여 제품의 품질을 향상시키고 독특한 소재 표면을 구현하는 방법이 대두되고 있다.Most of the kitchenware market, frying pan, and pot materials are made of aluminum and stainless steel (SUS), and other materials such as glass or iron are used. In recent years, A method of improving the quality of the product by machining the surface and realizing a unique material surface is emerging.
상기 알루미늄은 금속 강도가 낮으므로, 알루미늄 후라이팬 또는 웍은 다이캐스팅이나 프레스(press)공법으로 표면에 음양각을 포함한 여러 모양을 구현하고, 알루미늄의 산화막 처리나 부식처리를 통해 다양한 소재표면을 구비할 수 있다.Since aluminum has a low metal strength, an aluminum frying pan or a wok can be formed by die casting or a press method, and various shapes including a yang angle can be realized. have.
그러나, SUS 는 알루미늄에 비해 상대적으로 강도가 높고 다이캐스팅이 불가능하여 다양한 소재표면 효과 구현이 어려우며, 프레스(press)를 이용하여 엠보싱 효과를 부여하는 것은 가능하나, 이 또한 SUS소재가 매우 얇을 경우에만 가능하였다. However, SUS has a higher strength than aluminum and can not be diecasted, making it difficult to achieve various surface effects. It is also possible to apply an embossing effect using a press, but this is also possible only when the SUS material is very thin Respectively.
또한, 주방기물은 고온에 장시간 노출되므로, SUS소재로 이루어진 주방기물은 열변형에 견디기 위하여, 일정두께 이상을 구비하고 있으며, 온도를 많이 받는 바닥면은 최소 1.5㎜ 이상이 사용되거나, 열변형에 견디게 하고자 2-PLY, 3-PLY 처럼 겹층구조로 되어있는 것들이 사용되어지고 있다. Since the kitchenware is exposed to high temperature for a long time, the kitchenware made of SUS material has a thickness exceeding a certain thickness in order to withstand the thermal deformation. In order to survive, those with double layer structure such as 2-PLY and 3-PLY are being used.
종래에는 SUS 및 알루미늄으로 이루어진 주방기물에 고기능성 구현 및 독특한 소재표면 형성을 위하여, 주방기물 표면에 음각부와 양각부를 구비하는 무늬를 형성한 후, 상기 무늬가 형성된 주방기물의 표면에 소재보호, 내부식성 향상, 비점착 성능, 다양한 색상구현 등의 목적으로 불소도료 또는 세라믹도료가 코팅되고 있다. Conventionally, in order to realize a high functionality and a unique material surface on a kitchen ware made of SUS and aluminum, a pattern having a depressed portion and a relief portion is formed on the surface of the kitchen ware, A fluorine paint or a ceramic paint is coated for the purpose of improving corrosion resistance, non-sticking performance, various colors and the like.
그러나, 상기와 같은 종래의 기술은 음각부와 양각부가 서로 다른 색상을 구비하도록 코팅하는 것은 불가능하였으며, 음각부 및 양각부에 코팅층을 형성할 경우, 상하에 위치하는 코팅층이 일체로 접착되지 못하게 되는 현상이 발생되고 있다. However, in the conventional technique as described above, it is impossible to coat the engraved portion and the embossed portion with different colors, and when the coating layer is formed on the engraved portion and the embossed portion, the upper and lower coating layers are not bonded together A phenomenon is occurring.
즉, 상기 불소도료에 의해 도막이 형성될 경우, 불소도막의 경도가 낮아 양각부의 불소도료를 제거하는 과정에서 양각부와 음각부의 경계면 및, 음각부의 도막에서 쉽게 손상이 발생되고 있으며, 이러한 손상에 의해 발생된 상처는 불소도막의 손실을 의미하므로, 표면을 깨끗이 닦아내더라도 지속적으로 검은색 가루(불소성분)가 묻어나오게 되는 문제점이 발생되고 있다. 특히, 불소성분은 유해성 논란은 끊이지 않고 있으므로, 코팅된 불소성분이 유출될 경우, 사용자의 건강을 위협하게 되고, 불소도막의 손상은 비점착 성능의 하락으로 이어지게 되는 심각한 문제점이 발생되고 있다. That is, when the coating film is formed by the fluorine paint, the hardness of the fluorine coating film is low, so that in the process of removing the fluorine paint of the embossing portion, damage is easily caused at the interface between the embossing portion and the engraved portion and in the coating film at the engraved portion. Since the generated scratches indicate the loss of the fluorine coating film, even if the surface is wiped clean, there is a problem that black powder (fluorine component) continuously comes out. Particularly, since the controversy of harmfulness of the fluorine component is unremitting, there is a serious problem that when the coated fluorine component flows out, the health of the user is threatened and the damage of the fluorine coating film leads to a decrease in the non-adhesive performance.
또한, 세라믹도료는 다음과 같은 문제점으로 인해 적용이 불가능하였다. 첫째, 세라믹코팅은 특유의 취성으로 인해 경도는 강하지만 큰 충격에 의하여 깨지기 쉬우므로, 음각부와 양각부에 세라믹도료 하도와 상도를 한꺼번에 코팅하고 양각부를 제거하게 될 경우, 양각부 모서리 즉, 음각부와 양각부 경계면에서 심한 깨짐 현상이 발생되어 상품성이 저해되는 문제점이 있었다. In addition, ceramic coatings were not applicable due to the following problems. First, since the ceramic coating has a strong hardness due to its specific brittleness, it is easy to be broken by a large impact. Therefore, when the ceramic paint undercoat and the top coat are coated all at once on the engraved portion and the embossed portion and the embossed portion is removed, There is a problem that severe cracking occurs at the interface between the part and the embossed part and the merchantability is deteriorated.
둘째, 양각부 부분의 세라믹코팅을 제거함으로써 양각부에는 아무런 도막이 남지 않게 되어 비점착 성능이 좋지 않은 문제점이 발생되며, 이러한 문제점은 불소도료에서도 발생되고 있다. Second, by removing the ceramic coating on the embossed portion, no coating is left on the embossed portion, which results in a problem that the non-adhesive performance is poor. This problem also occurs in the fluorine coating.
셋째, 세라믹코팅의 기존 코팅방법은 하도가 경화되면 하도도막이 세라믹화되어, 상도를 코팅하더라도 하도도막에 접착이 되지 않는 문제점이 발생되고 있으며, 따라서 기존의 방법은 하도가 젖어있는 상태로 상도를 코팅하는 wet-on-wet 방법으로 코팅한 후 양각부를 제거하는 방법만이 사용되어지고 있다. 그러나, 세라믹코팅층의 하도와 상도가 한꺼번에 코팅된 기물은 완전히 경화된 상태이므로, 양각부의 도막층을 제거하는데 어려움이 발생될 뿐 아니라, 세라믹도막이 취성의 영향으로 인해 양각부와 음각부의 경계면에 깨짐현상이 발생되는 등 여러가지 문제점이 있었다. Third, the existing coating method of the ceramic coating has a problem that when the undercoat is cured, the undercoat is converted into a ceramic, and even when the topcoat is coated, the undercoat is not adhered to the undercoat. Therefore, The wet-on-wet method is used to remove the embossed portion. However, since the ceramic coating layer is completely cured, it is difficult to remove the coating layer of the embossed portion. In addition, since the ceramic coating layer is cracked at the interface between the embossed portion and the engraved portion due to the effect of brittleness And the like.
등록특허공보 등록번호 10-0804387(2008.02.11)Patent Registration No. 10-0804387 (2008.02.11) 등록특허공보 등록번호 10-1476146(2014.12.18)Patent Registration No. 10-1476146 (Dec. 18, 2014) 등록실용신안공보 등록번호 20-0470617(2013.12.24)Registration Utility Model Registration No. 20-0470617 (December 24, 2013) 공개특허공보 공개번호 10-2017-0031364(2017.03.21)Published Patent Publication No. 10-2017-0031364 (Feb.
본 발명의 목적은 표면에 음각부와 양각부의 무늬를 구비하는 주방기물에 세라믹코팅제에 의한 하도도막 및 상도도막을 형성하고, 음각부와 양각부의 색상이 서로 상이하도록 표현되는 주방기물의 세라믹코팅방법과, 이에 의해 코팅된 주방기물을 제공하는 것이다. An object of the present invention is to provide a ceramic coating method of a kitchenware which is formed such that a lower coating film and an upper coating film of a ceramic coating agent are formed on a kitchenware having a pattern of engraved portions and embossed portions on the surface thereof, And a kitchen utensil coated thereby.
본 발명은 음각부와 양각부를 구비하는 무늬가 형성된 주방기물 소재의 표면을 전처리하는 전처리단계; 전처리단계 후, 이물질을 제거하고 예열하는 예열단계; 예열단계 후, 주방기물 소재표면의 음각부 및 양각부에 유색을 구비하는 세라믹코팅제를 도포하여 하도도막을 형성하는 하도코팅단계; 하도코팅단계 후, 하도도막을 가건조하여 표면조도 0.2∼5㎛, 물접촉각 80°이하가 되도록 조절하는 가건조단계; 주방기물 표면의 양각부에 코팅된 하도도막을 제거하는 도막제거단계; 하도도막이 제거된 양각부 및 남아있는 하도도막에 비점착 투명 세라믹코팅제를 도포하여 상도도막을 형성하는 상도코팅단계; 상도코팅단계 후, 상도도막을 완전건조하는 건조단계;를 통해, 무늬의 음각부와 양각부가 서로 다른 색상을 구비하는 주방기물이 제조되도록 되어 있다. The present invention relates to a method for manufacturing a kitchen utensil, comprising: a pretreatment step of pretreating a surface of a kitchen material having a pattern formed with a relief portion and a relief portion; A preheating step of removing foreign matter and preheating after the pretreatment step; A subcoating step of applying a ceramic coating agent having a color to the engraved portion and the embossed portion of the surface of the kitchen ware after the preheating step to form an undercoat film; After the undercoating step, the undercoat is dried to adjust the surface roughness to 0.2 to 5 mu m and the water contact angle to be 80 DEG or less; A step of removing the coating film coated on the embossed portion of the surface of the kitchen ware; An upper coating step of forming an upper coating film by applying a non-adhesive transparent ceramic coating agent to the embossed portion where the lower coating film is removed and the remaining lower coating film; After the top coating step and the drying step in which the top coating film is completely dried, the kitchenware having the engraved portions of the pattern and the embossed portions having different colors is manufactured.
본 발명은 음각부와 양각부의 무늬패턴이 형성된 주방기물 소재에 하도와 상도를 세라믹코팅하여, 음각부와 양각부의 색상이 서로 상이하게 표현되도록 하는 효과가 있다. 특히, 본 발명은 상도도막이 비점착 세라믹 투명코팅제로 이루어져 있어, 표면이 비점착성을 구비하는 효과가 있다. The present invention has an effect that the colors of the engraved portion and the embossed portion are expressed differently by ceramically coating the lower and upper surfaces of the kitchen ware material in which the engraved portion and the embossed pattern of the embossed portion are formed. In particular, since the top coat of the present invention is made of a non-adhesive ceramic clear coating agent, the surface of the top coat is non-sticky.
본 발명은 하도와 상도가 동시에 코팅하지 않을뿐더러 하도의 경화를 가건조하기 때문에 양각부의 도막층을 제거하는데 어려움이 없고 음각부와 양각부의 경계면도 깨끗하게 구현되는 효과가 있다. Since the undercoat and the topcoat are not coated at the same time and the undercoat is dried, the present invention has no difficulty in removing the coating layer of the embossed portion, and the interface between the engraved portion and the embossed portion is also cleanly realized.
본 발명은 주방기물 뿐 아니라, 건축자재에도 적용할 수 있으며, 양각부가 코팅이 안 된 기존의 제품들과는 차별화되어 제품의 내구성, 비점착성, 내식성 등 외관적, 물성적 우수함을 구비할 수 있는 등 많은 효과가 있다.The present invention can be applied not only to kitchen utensils but also to building materials, and it can be provided with excellent appearance and physical properties such as durability, non-tackiness and corrosion resistance, It is effective.
도 1 은 본 발명에 따른 세라믹코팅방법을 보인 블록 예시도
도 2 는 본 발명에 따른 구성을 보인 예시도
도 3 은 본 발명 실시예2에 따른 SUS 후라이팬을 보인 사진예시도
도 4 는 본 발명 실시예2에 따른 사진대비도
1 is a block diagram illustrating a ceramic coating method according to the present invention.
FIG. 2 is a view showing an example of a configuration according to the present invention
Fig. 3 is a photograph showing an example of a SUS frying pan according to a second embodiment of the present invention
Fig. 4 is a view showing the photograph contrast according to the second embodiment of the present invention
도 1 은 본 발명에 따른 세라믹코팅방법을 보인 블록 예시도를, 도 2 는 본 발명에 따른 구성을 보인 예시도를, 도 3 은 본 발명 실시예2에 따른 SUS 후라이팬을 보인 사진예시도를, 도 4 는 본 발명 실시예2에 따른 사진대비도를 도시한 것으로, FIG. 1 is a block diagram showing a ceramic coating method according to the present invention, FIG. 2 is an illustration showing a constitution according to the present invention, and FIG. 3 is a photograph showing a SUS frying pan according to a second embodiment of the present invention 4 is a photographic contrast view according to the second embodiment of the present invention,
본 발명은 음각부(11)와 양각부(12)로 이루어진 무늬가 형성된 주방기물 소재(10)의 표면을 전처리하는 전처리단계;A pretreatment step of pretreating a surface of a kitchen ware material (10) having a pattern formed of a relief part (11) and a relief part (12);
전처리단계 후, 이물질을 제거하고 예열하는 예열단계;A preheating step of removing foreign matter and preheating after the pretreatment step;
예열단계 후, 주방기물 표면의 음각부(11) 및 양각부(12)에 유색을 구비하는 세라믹코팅제를 도포하여 하도도막(20)을 형성하는 하도코팅단계;A lower coating step of applying a ceramic coating agent having a color to the engraved portion 11 and the embossed portion 12 of the surface of the kitchenware after the preheating step to form an undercoating film 20;
하도코팅단계 후, 하도도막(20)을 가건조하여 표면조도 0.2∼5㎛, 물접촉각 80°이하가 되도록 조절하는 가건조단계;After the subcoating step, the undercoating film 20 is dried to adjust the surface roughness to 0.2 to 5 m and the water contact angle to be 80 or less;
주방기물 표면의 양각부(12)에 코팅된 하도도막(20)을 제거하는 도막제거단계;A coating film removing step of removing the undercoat film (20) coated on the embossed portion (12) of the surface of the kitchen ware;
하도도막이 제거된 양각부(12) 및 남아있는 하도도막(20)에 비점착 투명 세라믹코팅제를 도포하여 상도도막(30)을 형성하는 상도코팅단계;An upper coating step of forming a top coat 30 by applying a non-adhesive transparent ceramic coating agent to the embossed portion 12 and the remaining undercoating film 20 from which the undercoated film is removed;
상도코팅단계 후, 상도도막(30)을 완전건조하는 건조단계;를 통해, 무늬의 음각부(11)와 양각부(12)가 서로 다른 색상을 구비하는 주방기물(10)이 제조되도록 되어 있다. After the top coating step and the drying step in which the top coat 30 is completely dried, the kitchen ware 10 having the engraved portions 11 and the embossed portions 12 of different colors is manufactured .
상기 전처리단계는 음각부 및 양각부 무늬가 형성된 주방기물 소재(10)의 표면을 샌드블라스트, 에칭, 탈지 등에 의한 전처리(pre-treatment)작업을 수행한다. 상기 주방기물의 음/양각 무늬는 부식처리, 레이저가공, 선반가공, 자성입자처리 등등 공지의 다양한 방법에 의해 형성될 수 있다. 상기 주방기물은 후라이팬, 냄비, 웍 등등 주방에서 사용되어지고 있는 다양한 조리기구 및 용기를 의미한다. In the pretreatment step, the surface of the kitchen ware material 10 on which the engraved portions and the embossed patterns are formed is pre-treated by sandblasting, etching, degreasing or the like. The negative / positive pattern of the kitchen article can be formed by various known methods such as etching, laser processing, lathe processing, magnetic particle processing, and the like. The kitchenware refers to various cooking utensils and containers used in kitchens such as frying pan, pot, wok, and the like.
상기 예열단계는 하도코팅시, 세라믹코팅제가 흐르지 않도록 할 뿐 아니라, 은폐력을 높여주기 위한 것으로, 소재와 기물의 형태와 두께에 따라 차이가 있으나, 약 30℃∼70℃ 에서 주방기물을 예열하는 것이 바람직하다.The preheating step is performed not only to prevent the ceramic coating agent from flowing, but also to increase the hiding power when the undercoating is performed. It differs depending on the shape and the thickness of the material and the material, but preheating the kitchen material at about 30 ° C to 70 ° C desirable.
상기 하도코팅단계는 주방기물의 표면에 세라믹코팅제를 도포하는 단계로, 상기 세라믹 코팅제는 유색을 구비하며 광택이 적고 도포경화된 도막의 표면조도가 0.2∼5㎛으로 형성되는 것이 사용된다. The undercoating step is a step of applying a ceramic coating agent to the surface of the kitchenware, wherein the ceramic coating agent is colored, has a low gloss, and has a coated surface hardness of 0.2 to 5 占 퐉.
일 예로, 상기 세라믹코팅제는 알콕실란을 가수분해시키는 졸겔법을 기본으로 하여 제조된 세라믹 코팅제 또는, 상기 알콕실란을 가수분해시키는 졸겔법을 기본으로 하여 제조된 세라믹 코팅제에 유기기가 더 첨가된 유무기 하이브리드 세라믹코팅제가 사용될 수 있다. 또한, 상기와 같은 세라믹 코팅제는 대표적으로 본 발명의 출원인 대한화인세라믹(주)의 세라믹코팅제 품명 PC-3000 또는 SC-3000 이 사용될 수 있다. For example, the ceramic coating agent may be a ceramic coating agent prepared on the basis of a sol-gel method for hydrolyzing an alkoxysilane, or a ceramic coating agent based on a sol-gel method for hydrolyzing the alkoxysilane, A hybrid ceramic coating agent may be used. The ceramic coating agent may be PC-3000 or SC-3000 which is a ceramic coating agent of Korea Fine Ceramics Co., Ltd., which is a representative of the present invention.
상기 가건조단계는 도포된 세라믹코팅제를 건조하여 가건조상태의 하도도막을 형성하는 단계로, 상기 가건조는 완전건조/경화되지 않았으나 손으로 만졌을때 지문이 묻지 않는 정도의 건조상태 즉, 지촉건조(指觸乾燥)를 의미한다.The drying step is a step of drying the applied ceramic coating agent to form an undercoat film in a dry state. The drying machine is not completely dried / cured, but is dried to a degree that fingerprints do not touch when hand- Fingering and drying).
즉, 상기 가건조단계는 세라믹코팅제로 이루어진 하도도막(20)에 대한 비점착 세라믹 투명코팅제로 이루어진 상도도막(30)이 균열발생없이 일체화될 수 있도록 하기 위한 것으로, 주방기물의 온도가 100℃ 이하, 바람직하게는 50℃∼80℃, 더욱 바람직하게는 약 70℃가 되도록 유지하면서 약 1∼3분, 더욱 바람직하게는 약 1∼2분동안 짧게 가건조한다. 이와 같은 가건조조건하에서 하도도막이 가건조될 경우, 표면조도 0.2∼5㎛가 유지되면서, 물접촉각이 80°이하로 조절된 하도도막(20)이 형성되게 된다. That is, the drying step is performed so that the top coat 30 made of the non-adhesive ceramic clear coating agent for the undercoating film 20 made of a ceramic coating agent can be integrated without cracking, , Preferably 50 占 폚 to 80 占 폚, more preferably about 70 占 폚, for about 1 to 3 minutes, and more preferably for about 1 to 2 minutes. When the undercoating film is dried under such a drying condition, the undercoating film 20 having a water contact angle of 80 ° or less is formed while maintaining the surface roughness of 0.2 to 5 μm.
즉, 상기 가건조단계는 하도도막(20)이 80℃를 초과하는 온도에서 3분을 초과하여 건조될 경우, 도막표면의 하이드록시기(-OH)의 수가 감소되어 물접촉각이 80°를 초과하게 되며, 이와 같이 물접촉각이 80°를 초과하게 될 경우, 상도코팅 시, 비점착 세라믹 투명코팅제가 이슬처럼 맺히게 되어 하도도막과 결합하지 못하게 되는 문제점이 발생된다. That is, in the drying step, when the undercoating film 20 is dried at a temperature exceeding 80 캜 for more than 3 minutes, the number of hydroxyl groups (-OH) on the surface of the coating film is decreased, If the water contact angle exceeds 80 °, the non-adhesive ceramic clear coating agent becomes dewy formed during the top coating, thereby failing to bond with the undercoating film.
또한, 건조온도가 50°미만 또는 건조시간이 1분 미만으로 이루어질 경우, 가건조/지촉건조(指觸乾燥)조차 되지 않아 양각부의 도막을 제거하는 과정에서 먼지나 이물질에 의한 오염이 발생하고 후공정인 도막제거단계에 의한 손상이 발생되므로, 상기와 같은 건조온도 및 건조시간내에서 하도도막에 대한 가건조가 이루어져야 한다. Further, when the drying temperature is less than 50 ° or the drying time is less than 1 minute, it is not even dried / touched to dry, thereby causing contamination due to dust or foreign matter in the process of removing the coating film of the embossed portion, It is necessary to dry the undercoating layer within the drying temperature and the drying time as described above because damage occurs due to the step of removing the coating film.
상기와 같은 가건조 단계에 의해 하도도막(20)은 물접촉각 80°이하를 구비하게 되고, 표면조도(roughness,Ra) 0.2∼5㎛를 만족하게 된다. 상기 표면조도가 0.2㎛미만으로 조절될 경우 하도도막과 상도도막의 접착력이 저하되고, 표면조도가 5㎛를 초과하게 될 경우, 최종 도막 즉, 상도도막의 표면이 매끄럽지 못하게 되는 문제점이 발생되므로, 가건조에 의해 표면조도가 유지되어야 한다. By the above drying step, the undercoating film 20 has a water contact angle of 80 DEG or less and satisfies the surface roughness Ra of 0.2 to 5 mu m. When the surface roughness is adjusted to less than 0.2 mu m, the adhesive force between the undercoating film and the topcoating film is lowered, and when the surface roughness exceeds 5 mu m, the final coating film, that is, the surface of the topcoating film, The surface roughness should be maintained by the tug gun.
또한, 상기 가건조에 의해 이루어진 하도도막(20)은 물접촉각 약 60°이하, 표면조도(roughness,Ra) 1∼3㎛을 구비하도록 형성되는 것이 바람직하다. Further, it is preferable that the undercoat film 20 formed by the above-mentioned pressing process is formed to have a water contact angle of about 60 DEG or less and a surface roughness (Ra) of 1-3 mu m.
상기 도막제거단계는 무늬의 양각부(12)에 형성되어 있는 하도도막(20)을 제거하여, 주방기물 자체의 소재가 외부로 노출되도록 하는 단계로, 사포나 그라인딩 등 공지의 방법에 의해 양각부 표면에 형성된 하도도막을 제거한다. The step of removing the coating film is a step of removing the undercoating film 20 formed on the embossed portion 12 of the pattern so that the material of the kitchenware itself is exposed to the outside, and is formed by a known method such as sandpapering or grinding, The undercoating film formed on the surface is removed.
이와 같은 도막제거단계에 의해 주방기물의 표면에는, 외부로 소재가 노출된 양각부와, 하도도막이 형성된 음각부로 이루어진 무늬가 형성되게 된다. By such a step of removing the coating film, a pattern consisting of a relief portion where the material is exposed to the outside and a relief portion formed with the undercoating film is formed on the surface of the kitchenware.
상기 상도코팅단계는 무늬의 양각부 및 하도도막에 비점착 세라믹 투명코팅제를 도포하여 상도도막(30)을 형성한다. 이때, 상기 양각부(12)에는 하도도막의 제거시 생성된 스크래치가 존재하고, 하도도막(20)은 표면조도(roughness,Ra) 0.2∼5㎛, 물접촉각 80°이하를 구비하고 있어, 비점착 세라믹 투명코팅제의 도포에 의해 생성되는 상도도막(30)은 양각부(12) 및 하도도막(20)과의 표면접착력이 증대된다. 즉, 주방기물의 표면에 상도도막(30)이 일체로 형성되게 된다. The top coating step forms a top coat 30 by applying a non-adhesive ceramic clear coating to the patterned embossments and underlying coating. At this time, scratches generated upon removal of the undercoat layer are present in the relief portion 12, and the undercoat layer 20 has a surface roughness Ra of 0.2 to 5 占 퐉 and a water contact angle of 80 占 or less, The top coat film 30 produced by applying the adhesive ceramic clear coating agent has an increased surface adhesion strength to the raised portions 12 and the undercoat film 20. [ That is, the top coat 30 is integrally formed on the surface of the kitchen ware.
또한, 상기 상도도막(30)은 건조도막두께를 기준으로 2∼15㎛, 바람직하게는 약 5∼10㎛ 사이로 코팅되며, 2㎛ 미만일 경우 광택 및 비점착성능이 저하되고, 15 ㎛를 초과하게 되면 크랙의 위험성이 높고 양각부위에 코팅된 도막층이 주걱이나 뒤집개등에 의해 박리되는 현상이 발생되므로, 적정두께를 구비하여야 한다. In addition, the top coat 30 is coated to a thickness of 2 to 15 탆, preferably about 5 to 10 탆, based on the dry film thickness. When the top coat 30 is less than 2 탆, the gloss and non- The risk of cracking is high and a coating layer coated on the embossed portion is peeled off by a spatula or a flap, so that a proper thickness should be provided.
상기 비점착 세라믹 투명코팅제는 비점착성을 구비하는 세라믹 코팅제로 시중에 판매되고 있는 공지의 것이 사용되므로, 이에 대한 상세한 설명은 생략한다. Since the non-adhesive ceramic clear coating agent is a commercially available ceramic coating agent having a non-adhesive property, a detailed description thereof will be omitted.
또한, 상기 비점착 세라믹 투명코팅제는 펄(pearl)이나 페이스트 같은 메탈릭 입자 또는 안료를 추가로 넣어 사용할 수 있다. Further, the non-adhesive ceramic clear coating agent may be further added with metallic particles or pigments such as pearl or paste.
상기 건조단계는 표면에 비점착 세라믹 투명코팅제가 도포코팅된 주방기물을 150℃∼300℃, 바람직하게는 약 200℃∼250℃에서 10∼20분 건조하여 완전 경화된 상도도막(30)을 형성한다. 이때, 150℃ 미만으로 건조경화되면 상도도막의 경도가 떨어지고 내화학성이 약해지게 되며, 300℃ 초과하게 되면, 상도도막의 내충격성 및 비점착성이 저하되게 된다. The drying step may be performed by forming a fully cured top coat 30 by drying a kitchenware having a surface coated with a non-adhesive ceramic transparent coating agent at 150 to 300 캜, preferably about 200 to 250 캜 for 10 to 20 minutes do. At this time, if the drying is cured at less than 150 캜, the hardness of the top coat is lowered and the chemical resistance is weakened. When the temperature is higher than 300 캜, the impact resistance and non-tackiness of the top coat are lowered.
이하, 본 발명을 실시예에 의해 상세히 설명하면 다음과 같다. Hereinafter, the present invention will be described in detail with reference to the following examples.
실시예 1Example 1
음양각의 무늬가 구비된 SUS 후라이팬을 샌드블라스트 처리하고, 소재온도 기준 40℃로 예열한 후, 건조도막두께 기준 25∼30㎛을 구비하도록 하도용 세라믹코팅제(흑색)을 도포한 후, 소성로에 넣고 소재온도가 80℃가 되면 1분간 유지한 후 소성로에서 꺼내어 하도도막에 대한 가건조를 수행하였다. The SUS frying pan equipped with an embossed pattern was subjected to a sand blast treatment, preheated at a temperature of 40 DEG C based on the material temperature, coated with a ceramics coating agent for black (black) so as to have a dry thickness of 25 to 30 mu m, When the temperature of the material reached 80 ° C, it was held for 1 minute and then removed from the firing furnace to dry the undercoating film.
이와 같이 가건조된 하도도막에 대하여, 표면조도 및 물접촉각을 측정하였으며, 그 결과 본 발명에 따른 하도도막은 표면조도(roughness,Ra) 약 1.5∼1.8 ㎛, 물접촉각 약 55∼58°을 구비하였다. The surface roughness and the water contact angle of the undercoat layer thus dried were measured. As a result, the undercoat layer according to the present invention had a surface roughness (Ra) of about 1.5 to 1.8 μm and a contact angle of water of about 55 to 58 ° Respectively.
실시예 2Example 2
실시예 1 에 따른 SUS 후라이팬의 표면을 #800의 사포로 문질러 양각부의 세라믹도막(하도도막)을 제거한 다음, 양각부의 코팅이 제거된 SUS 후라이팬에 비점착 세라믹 투명코팅제를 5∼9㎛ 두께로 코팅하고 200℃로 경화하여 도 3 에 도시된 바와 같이, 음양각의 색상이 다른 SUS 후라이팬 코팅을 완성하였다.The surface of the SUS frying pan according to Example 1 was rubbed with sandpaper # 800 to remove the ceramic coating (undercoat) on the embossed portion. Then, a non-adhesive ceramic clear coating was applied to the SUS frying pan from which the coating on the embossed portion had been removed, And cured at 200 캜, thereby completing the SUS fry pan coating having different colors of the obovate, as shown in Fig.
도 4 의 (a)는 실시예 2 에 따른 본 발명의 SUS 후라이팬의 현미경 사진(200배)을, 도 4 의 (b)는 종래 음양각 무늬를 구비하는 후라이팬의 현미경 사진(200ㅂ배)을 도시한 것으로, 도 4 에서와 같이, 본 발명에 따른 SUS 후라이팬은 음각부와 양각부의 경계면이 선명하게 표현되는데 반하여, 종래 SUS 후라이팬은 표면에 크랙이 발생되어 음양각부의 경계면이 모호해지는 현상이 발생되고 있음을 알 수 있다. (상기 종래 SUS 후라이팬은 불소도막을 구비하는 것을 사용하였다 )4 (a) is a microscope photograph (200 times) of the SUS frying pan of the present invention according to the second embodiment, and FIG. 4 (b) is a microphotograph (200 times) of a conventional frying pan As shown in FIG. 4, in the SUS frying pan according to the present invention, the boundary surface between the engraved portion and the relief portion is clearly expressed, whereas the conventional SUS frying pan has a phenomenon in which cracks are generated on the surface, Is generated. (The conventional SUS frying pan was provided with a fluorine coating film)
실시예 3Example 3
실시예 2 에 따른 제조된 SUS 후라이팬에 대한 비점착성능을 테스트하였다.The non-stick performance of the prepared SUS pans according to Example 2 was tested.
실시예 2 에 따른 제조된 SUS 후라이팬을 중성세제로 세척 후, 내부 표면온도 300℃에서 30분간 가열하고 식힌 다음, 180℃∼190℃에서 1분40초간 계란프라이(식용유 미포함, 10회 간격으로 후라이팬 세척)를 10회 1cycle로 하여, 계란의 부착에 따른 비점착성능을 테스트하였다. The prepared SUS frying pan according to Example 2 was washed with a neutral detergent and then heated at an inner surface temperature of 300 캜 for 30 minutes and cooled. Then, the frying pan was heated at 180 캜 to 190 캜 for 1 minute and 40 seconds in an egg fryer Washing with frying pan) was performed 10 times for 1 cycle, and the non-sticking performance according to the attachment of eggs was tested.
이때, 상기 비점착성능 테스트는 평점 5점을 만점으로, SUS 후라이팬으로부터 특별한 힘없이 계란 전체가 떨어질 때 5점, 약간의 힘으로 계란이 붙음없이 떨어질 때 4점, 뒤집개의 약한 힘에 의해 계란 일부가 찢어질 때 3점, 계란이 두 부위 이상으로 찢어질 때 2점, 계란이 부착되어 떼어내기 어려울 때 1점으로 하여, 평가 점수 1점이 연속 2회 나오는 시점을 실험 종료로 하였다. At this time, the non-sticking performance test was carried out with a score of 5, a score of 5 points when the entire egg fell from the SUS frying pan without any special force, 4 points when the egg fell without being attached with a slight force, 3 points when ripped, 2 points when the eggs were torn in two or more places, and 1 point when the eggs were difficult to peel off.
그 결과, 종래 SUS 후라이팬은 1 cycle 3회에 실험이 종료되었으나, 본 발명에 따른 SUS 후라이팬은 7 cycle 5회에 실험이 종료되었으며, 이를 통해, 본 발명에 따른 SUS 후라이팬이 우수한 비점착성능을 구비하고 있음을 알 수 있다. As a result, in the conventional SUS frying pan, the experiment was terminated in three cycles, but the SUS frying pan according to the present invention completed the experiment in seven cycles and five times. As a result, the SUS frying pan according to the present invention exhibited excellent non- It can be seen that the performance is provided.
본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위내에 있게 된다. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.
(10) : 주방기물 소재 (11) : 음각부
(12) : 양각부 (20) : 하도도막
(30) : 상도도막 (40) : 주방기물
(10): Kitchen material material (11): engraved part
(12): Embossed portion (20): Lower film
(30): top coat (40): kitchen ware

Claims (5)

  1. 음각부(11)와 양각부(12)로 이루어진 무늬가 형성된 주방기물 소재(10)의 표면을 전처리하는 전처리단계;
    전처리단계 후, 이물질을 제거하고 예열하는 예열단계;
    예열단계 후, 주방기물 소재표면의 음각부(11) 및 양각부(12)에 유색을 구비하는 세라믹코팅제를 도포하여 하도도막(20)을 형성하는 하도코팅단계;
    하도코팅단계 후, 하도도막(20)을 가건조하여 표면조도 0.2∼5㎛, 물접촉각 80°이하가 되도록 조절하는 가건조단계;
    주방기물 소재표면의 양각부(12)에 코팅된 하도도막(20)을 제거하는 도막제거단계;
    하도도막이 제거된 양각부(12) 및 남아있는 하도도막(20)에 비점착 세라믹 투명코팅제를 도포하여 상도도막(30)을 형성하는 상도코팅단계;
    상도코팅단계 후, 상도도막(30)을 완전건조하는 건조단계;를 통해, 무늬의 음각부(11)와 양각부(12)가 서로 다른 색상을 구비하는 주방기물(10)이 제조되는 것을 특징으로 하는 주방기물의 표면에 음양각 문양이 선명하게 표현되도록 하는 세라믹코팅방법.
    A pretreatment step of pretreating the surface of the kitchen ware material 10 having the pattern formed of the engraved portion 11 and the relief portion 12;
    A preheating step of removing foreign matter and preheating after the pretreatment step;
    A lower coating step of applying a ceramic coating agent having a color to the engraved portion 11 and the relief portion 12 of the surface of the kitchen ware after the preheating step to form an undercoat film 20;
    After the subcoating step, the undercoating film 20 is dried to adjust the surface roughness to 0.2 to 5 m and the water contact angle to be 80 or less;
    A coating film removing step of removing the undercoating film 20 coated on the embossed portion 12 of the surface of the kitchen ware;
    An upper coating step of forming an upper coating film 30 by applying a non-adhesive ceramic clear coating agent to the embossed portion 12 and the remaining lower coating film 20 from which the lower coating film is removed;
    It is possible to manufacture the kitchen ware 10 having the engraved portions 11 and the embossed portions 12 of different colors through the drying step of drying the top coat 30 completely after the top coating step Wherein the shape of the mandibles is clearly expressed on the surface of the kitchenware.
  2. 청구항 1 에 있어서;
    가건조단계는, 주방기물의 소재온도 100℃ 이하에서 1∼3 분동안 가건조하는 것을 특징으로 하는 주방기물의 표면에 음양각 문양이 선명하게 표현되도록 하는 세라믹코팅방법.
    The method of claim 1,
    Wherein the drying step is performed for 1 to 3 minutes at a material temperature of 100 DEG C or lower, so that the shape of the mandibular contour is clearly displayed on the surface of the kitchen utensil.
  3. 청구항 1 에 있어서;
    상도도막(30)은 건조도막두께 기준으로 2∼15㎛ 를 구비하는 것을 특징으로 하는 주방기물의 표면에 음양각 문양이 선명하게 표현되도록 하는 세라믹코팅방법.
    The method of claim 1,
    Wherein the upper coating layer (30) has a dry coating thickness of 2 to 15 占 퐉.
  4. 청구항 1 에 있어서;
    비점착 세라믹 투명코팅제는 메탈릭 입자 또는 안료가 더 첨가된 것을 특징으로 하는 주방기물의 표면에 음양각 문양이 선명하게 표현되도록 하는 세라믹코팅방법.
    The method of claim 1,
    Wherein the non-adhesive ceramic clear coating agent is characterized in that metallic particles or pigment are further added to the surface of the kitchen ware.
  5. 청구항 1 내지 청구항 4 중 어느 한 항에 따른 세라믹코팅방법에 의해 코팅된 것을 특징으로 하는 주방기물.A kitchen utensil characterized by being coated by the ceramic coating method according to any one of claims 1 to 4.
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KR102060578B1 (en) 2019-03-28 2019-12-30 박광천 Method for Forming A Relief Pattern on The Surface of Ceramics

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JP2000178089A (en) 1998-05-27 2000-06-27 Toto Ltd Pottery and its manufacture
KR101293429B1 (en) 2013-02-21 2013-08-05 문윤덕 Pattern forming method for cooking pot
US20140154476A1 (en) 2011-07-25 2014-06-05 Seb S.A. Heating Article Comprising a Microstructured Heat-Stable Coating and Method of Manufacturing Such an Article
JP2017502799A (en) 2013-12-06 2017-01-26 キムズ ホールディングス カンパニー リミテッド Cooking container and manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
JP2000178089A (en) 1998-05-27 2000-06-27 Toto Ltd Pottery and its manufacture
US20140154476A1 (en) 2011-07-25 2014-06-05 Seb S.A. Heating Article Comprising a Microstructured Heat-Stable Coating and Method of Manufacturing Such an Article
KR101293429B1 (en) 2013-02-21 2013-08-05 문윤덕 Pattern forming method for cooking pot
JP2017502799A (en) 2013-12-06 2017-01-26 キムズ ホールディングス カンパニー リミテッド Cooking container and manufacturing method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102060578B1 (en) 2019-03-28 2019-12-30 박광천 Method for Forming A Relief Pattern on The Surface of Ceramics

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